Gearing



March .23 ,1926. I 1 1,577,982

J. W. PEARSON GEARING Filed Dec. 12-, 1921 I 3 Sheets-Sheet 1 ATTOKNEFJ March 23 1926. 1,577,982

J. W. PEARSON ATTO/P/VEY-S March 23 1926.

J. W. PEARSON GEARING Filed Dec. 12 1921 3 Sheets-Sheet 5 lean d M... 23', 1926. v 1,577,982 UNITED. TATES Par- Nro FicE.

JOHN w. PEARSON, or nay'roiv, oriro, AssIeNoa ro THE DAVIS 'snwme macnmn CQIMLPANY, OI! DAYTON, OHIO, ;A, CORPORATION OF DELAWARE.

I p GEARING.

Application fi'led becember 12, 1921.! Serial No. 521L680.

To all iizhom it my camera: in one part of revolution will have a Be it known that I, JOHN V p citizen of the United States, residing at of 1ts movement Wlll return to hero, descrlb- Dayton, in the county of Montgomery and ing undervarying 'conditionsof resistance State of Ohio; have invented certain. new at its point of connection between thev recipand useful Improvements in Gearing, of rocated member and the crank member an W. PEAR'soN,-a maximum movement and in another part,

which the, following is a specification, refovate or a parabolic path or paths of varyerence'being had therein to the accbmpany ing configurations depending upon the relaing drawingj v u n v tlve resiistance between the driven part and .My invention relates to POWGI'JIIBChaIlISlIfl, "the driving part. It is my 0b].60t to provide and in particular to mechanism which W1ll "a mechanism which Wlll move from zero to reciprocate a driven part in varying degrees while traveling in one direction and .bring the driven part to substantial rest while turning in the other direction.

The particular adaptati n illustratedpf my invention is that ofa vashing machlne of the domestic pqwer type. The object of my invention is to' provide a mechanism which will eliminate the necessity for a clutch for throwing into andout of engagement the driven mechanism when the direction of motion of the driving member is changed. It is also my object" to be ableto bring to rest or to operate driven mecha nism by a change in'directionof the driving means. 1 v A In a washing machine it is of particular advantage to eliminate the clutch and to be able to reciprocate a tub while the driving shaft is turning in one direction and by re versing the direction of power without cut-; ting off the source of power to be able to bring the tub to rest and still be able to operate the Wringer. It is also a matter of advantage to be able to operate the wringer without the resistance due to driving the I as tub so that no torque will be set up which will move the wringer about the axls of its vertical driving shaft and thus squeeze the operator between the tub and the wringer. My invention accomplishes this object because the driving. shaft connected to'the tub may turn freely, there being no movement of the tub imparted to it and therefore no resistance so that no torque is vset up which will in turn move the wringer about its vertical driving axis.

It will be understood that my invention i applicable to a-va'rietyof different; types of mechanism and that I have shown it in connection'with a'washing machine as an -illus-. tration of one of its practical embodiments.

It is a further object of my invention to. provide avariablethrow mechanism which the point -of maximum movement and return at varying times in the course. of a revolution and which will be maintained at substantially zero and substantiallyat rest' when] the driving part is turning in the other direction. It is also my object to combine this mechanism with flexible driving means which will absorb the shocks; stresses and strains incident to its operation and which will accommodate for theaalinement of the part'sfand the torsional strains and which will absorb whatever minor movement there maybe when the parts are in a position ofsubstantial rest.

Referring to the drawings:

Fig. 1, is a side elevation of" a complete washing machine with my mechanism in-, stalled;. 'F'g'a'2, is 'anend elevation of a washing machine with one side thereof removed and also-showing the electrical connections to the split phase motor; Fig; 3; is an enlarged section on the line aq of Fig. 4, of the driving-mechanism;

F1 4 is an end elevation enlarged of the riving mechanism showing the mechanism 1n itszero and maximum movement positions. Referring tofthe drawings, 1 is a washmg machine frame mounted upon rollers 2. In thls frame is journaledat 3 a tub 4 of any as I desired character, designed to be reciprocated about 3. To this tub'is pivoted at 5 a flexible connetin rod 6 such as shown in' the co-pending'app ication No. 420,113. A

fle rible connecting rod is not essential, but it is a. matter of advantage in a. mechanism of this character. This connecting rod. is

connected at 7 to the crank member 8. The

connecting rod itself is composed of a pair '21 to form an extended guideway or track guide 13 that embraces between the bottom 29 by a split-phase m otor 30, the wiring of of the rack 11 and itselfthe housing 14. which islseen in Figure 2. '31 is a switch This housing 14 has an end plate 15 that enof any well known type for reversing the cases the end ofthe driving shaft 16 and the direction of motion oflthe motor 30. 32 is gear 17 mounted thereon and turning there-' a fuse in the line )toprotect the mechanism. with within the tubular casing 18 which is The motor 30 is mounted in a frame 33. supported in anydesired' way as for in- 34 is-a centrifugal pump also mounted in stance by the bracket 19. This rack 11 has this frame. Clutch mechanism 35 is' oper-' an outwardly and upwardly projecting plate ated'by the handle 36 for throwing into and upon which is mountedrthe driven part out of engagement the wringer shaft 37 6 on the stud 7. The mounting is pivotal. whicli-drives the wring'er rolls 38 of the The casing 14 is projected laterally as at wring-er 39.

. I When it is desired "to-operate the washer for the passage of the rack 11 wlth a stop tub, the parts will assume the position shown 22' at one end to limit the movement of the in Figure l and *the tub will be reciprocated rack in that direction. The stop 23 Cerabout its center 3. When it is desired to 0prled by the casing 14' comes ln contact with erate the wringer t e tub is brought to rest the stop 13'on, the rack when it is moved in b rgvefsing th digectioli' bf ti f th bracket 19 at one end and the bracket 19' about the center of the driving shaft 16. At

'travel downwardly it will bedra wn inwardthe other or right hand direction, as will. d iving shafts by throwing the switch 31. be seen from Flgure h When the part This results in 8' merely rotating .freely in are 1n POSl lon a8 h W fu]1 11!1eS gthe bearing of 6 at 7 without moving the tub h movement oflthe member and without any resistance being interposed 1s substantlally zero while when the parts t th mqv emnt f 16, Th l f h 35 i are in the position shown inthe dotted lines fih th i t engagement b th r 36 9 in'the p t e Shown 111 Figm'e and the wringer'rolls started, but notorque 1s a maximum: of movement. g "will. be setup to move the wringer about 28 t wlll be readily np e' esthe because there is no resistance to the move- 6 l eloekwlse that the teeth 24 ment of "the shaft 28 to cause this torque.

engaging with teeth 25 of h reek If the clothes that are being run through will drive the reek 11 together with its the 'wringer 38'jam the wringer and thereby,

h 'p 6 to e l f' and when endanger the mechanism then the reduction the full extent of that movement has taken gearing iu nimved about on its plate 40 P then the Outer end of the crank and the switdh 41 actuated to cut out the 8 will lift so that the. Point ef'eonhee' .power, but this is not essential to my inventieh of 6 with 8 as 7 willstel't to travel tion and is only of incidental interest as it is l o eredb other a l' ations. a po1nt'1n the stroke, usually above and to c V y pp 1c full, eiitnt of h W111 h been be understood that parts have been shown 'p h t s the ehd'ef 8 Starts to for purposes of illustration only, and that I do not desire to be limited to such details, as due t h reslstahee to l-ts,mevemeht 1h obvious modifications will occur to a person that direction as Wlll sometimes happen, Skilled i the art 7 while in other instances it will make a full Havinoth f ll d ib d my i stroke completely about the center of 16 as a ti g I claim i new and i to center and at the same distance therefrom." cureby Letters'patent i' If the mechanism is' started from the other 1 A t f hi character direction so that 16 turns in an anti-clock i in i bin ti a d i wlse dlreetleha en, the reek W111, e ber; a driving member, means for operating h h to the p h Shown full he said driving member in opposite directions; Flghre 7 L substantlalty and means operably connecting said driving c1de with the end, of 16 and substantially no d dri n members, comprising a t movement W111 he lmpelted to 6 es the g matically variable length crank constructed a end 8 moves about 6 e e center to cause actuation of the driven member the left hand 611d. substantially coin when the driving member is' driven in one Oldes h the e 5 direction but to cause no movement of the Referring to Figure 2, it will be seen that the .driving shaft 16 is supported in the. t d i th reverse di ti 2. In combination, a driving means, a reat the other. Upon the right hand end of versible rotary driven'member, an interme- 16 is mounted a bevel gear 26 meshing with diate' automatically variable length connect-' another bevel gear 27 carried by a vertical ing mechanism between the aforesaid driv driving shaft 28 in a bracket29 affixed to ing means and driven memberconstructed to the frame-1 of the casing: This shaft 28 vary the location of the point of connection is driven through suitable reduction gearing of the driven member and intermediate eon- While I have shown and described certain fight a of the Y shaft the features as constituting my invention, it will described I driven member when the driving member is necting mechanism from a point coincident with the axis of the driving means to varying posltions away from saidaxls and about It while the driving means 1s revolv ng'm one direction, and to maintain the point of connection of the driven member and intermediate connecting mechanism substantially on the axis of the drivlng means when said means is turning in the other direction. 7

3. Apparatus of the character described, comprising, in combination, a driven member; a reversely rotatable driving member, means for operatingsaid driving member in opposite directions; a connecting mechanism length thereof, whereby the driven means is actuated when the driving means is rotated -in one direction, and is held substantially stationary when the driving means is rotated in the opposite direction. I

4. Apparatus of he character described, comprising, in combination, a driven member; a driving shaft, a support therefor, means for rotating the'said shaft in opposite directions; and connecting mechanism for operably connecting the said shaft to. the driven member, said connecting mechanism comprising a member operably connected to the end of the driving shaft and constructed -to be shifted during rotation of the said shaft transverselyto the major axis of the shaft, means associated with said member for guiding and limiting the transverse motion of the said member, and connecting means ivotally connecting the said transversely moving member and the driven 'member, the construction being such that the driven. member will beractuated as the driving shaft is rotated in one direction, but

' will receive substantially no movement from the driving shaft when that shaft is rotated in the opposite direction.

5. In combinatioma driving shaft, a driving means on the one end of said shaft,- a transverse member having, a driven means carried thereon to engage with the driving means on the driving shaft, means to limit the lateral motion of the driven me'ans in its, extreme positions, a pivotal connection on said driven means, a driven member mounted thereon the transverse member havi'ng'means to automatically vary the effective length thereof and the positioning of the driven means to cause the driven means to be actuated in one position of the driven means and to be held in pos tionof substantial rest in the other position of the driven means.

6,-In combination, a driving shaft, a pinion on one end theredf, a casing surround- .ing said pinion and said driving shaft, means tosuppOrt said casing so that it can rotate therein, a rack guided by said cas1ng ,and limiting 1ts extremelmovements, said rack engaging with said pinion within said cas mg, a member carriedby said rack, a stud carried by said member, a driven member pivoted thereon, wherel'iy as the shaft turns in one direction the pivotal connection of the driven member will be moved with the rack to its extreme outward position and will revolve about the driving shaft as a center, together with the casing; and in the other direction of motion of the driving shaft the pivotal connection will he brought substantially coincident with the axis of the driving shaft and no motion will be imparted to the driven member while the casin and rackurevolve about the axis of the driving shaft. Y

7. In a washing machine, a source of pow-. er, a reversible rotary drive shaft connected thereto, --a tub, and 1nterc'onnect1ng means between said tub and said driving shaft comprising an automatically variable length crank arm to reciprocate the tub in one direction of motion of .the driving shaft and to maintain it in position of substantial rest in the other .direction of motion 'of the driving shaft. i

8. In combination in a washing machine, a source of power, means for reversing the direction of motion ofthe source of power, a driving shaft driven by said source of power,,a tub, and means connecting said-driving shaft and tub to one another, said means comprising an automatically variable length crank and being so constructed, that when the power source drives the driving shaft in one direction the tub will be actuated throughsaid connecting means, but when the power source drives the driving shaft in the opposite direction the tub wilL be i held substantially stationary.

9. In combination in a washing machine, a source of power, means for reversmg'the direction ofmot1on of thesource of power,

a driving shaft driven by said source of power, a tub, means connecting said driving shaftand tub tg one another, and mechamsm'connectln'g said tub anddrivlng shaft,

comprising a variable length member constructed to automatically vary its length in accordance with the direction of rotation of the, driving shaft from full length when the able length meniber is of substantially. zero length the tub will be held substantially stationary, and when this variable length memher is of a length the tub will be actuated.

10. In combination, in a washing machine, a tub pivotally supported in a frame, a frame, means thereon for supporting a source of power, a driving shaft connected to said source of power supported by the frame of the washing machine, a pinion on one end of the driving shaft, a casing embracing said end of the driving shaft in said pinion with an aperture therein, said casing being supported by said frame rotatably therein, a laterally shiftable member having a rack thereon to engage with said pinion and to be guided by said casing, an outwardly extending and upwardly projecting member attached to said rack, a pivotal connection thereon, a conecting rod pivoted on the said pivotal connection at one end and to said tub at the other end to reciprocate said tub, whereby in one direction of motion the rack and the connecting rodw ill be moved to a position away from the axis of the driving shaft to reciprocate said'tub as the rack and casingrevolve about the driving shaft and in the other-direction of motion of the driving shaft of the point of connection of the laterallyshiftable member and the con i.

necting rod will coincide with the axis of the driving shaft, whereby the tub wilLbe held substantially stationary.

11. In combination, a reversible rotary power shaft, a crank operable in both .directions by said'power shaft, a device'operable by said crank, and connections between said crank and power shaft whereby said device is reeiprocated on rotation of said shaft in one direction and is held stagreater than zero length tionary 'when said shaft is rotated in the other direction.

12. In combination, a reversible rotary power shaft, a device connected eccentrically to said shaft when the shaft is rotated in one direction, and connections between the device and shaft for automatically niov ing said device concentric with the shaft when the shaft is rotated in rection.

13. Apparatus of the character described, comprising a driven member, a driving member, means for operating said driving member in opposite directions; and means for'at all times connecting said-driving and driven members, said means comprising a variable length crank constructed to automatically adjust itself to give full length leverage when the shaft is rotated in one direction, with. consequent actuation of the driven member, and to give an adjustment of substantially no leverage whenthe shaft is rotated in the opposite direction, with consequent lack of actuation of the driven member.

14. Apparatus of the character described comprising, in combination, a driven member, a driving member, means for operating-said driving member in opposite directions, means operably connecting said drivture.

, JOHN W. PEARSON.

the reverse (ii-=- 

